Preheat the oven to 200C. Place oil, butter, honey, and egg in a small bowl and whisk until combined.
Place banana, oats, flour, almonds, pepitas, raisins and dried cherries in a large bowl. Add in oil mixture and mix until combined. Gently fold in blueberries. Transfer mixture onto a lined slice pan and spread out evenly.
Bake for 25 minutes or until golden brown. Cool completely. Cut into 16 pieces.